DiagramControl.ContainerIsCollapsedChanging Event
In This Article
Occurs when the container’s collapsed state is being changed.
Namespace: DevExpress.Xpf.Diagram
Assembly: DevExpress.Xpf.Diagram.v24.2.dll
NuGet Package: DevExpress.Wpf.Diagram
#Declaration
public event EventHandler<DiagramContainerIsCollapsedChangingEventArgs> ContainerIsCollapsedChanging
#Event Data
The ContainerIsCollapsedChanging event's data class is DiagramContainerIsCollapsedChangingEventArgs. The following properties provide information specific to this event:
Property | Description |
---|---|
Cancel |
Gets or sets whether the event should be canceled.
Inherited from Cancel |
Container |
The container item whose Is |
Diagram |
|
Handled |
Gets or sets a value that indicates the present state of the event handling for a routed event as it travels the route.
Inherited from Routed |
New |
The new value of the Is |
Old |
The previous value of the Is |
Original |
Gets the original reporting source as determined by pure hit testing, before any possible Source adjustment by a parent class.
Inherited from Routed |
Routed |
Gets or sets the Routed |
Source |
Gets or sets a reference to the object that raised the event.
Inherited from Routed |
The event data class exposes the following methods:
Method | Description |
---|---|
Invoke |
When overridden in a derived class, provides a way to invoke event handlers in a type-specific way, which can increase efficiency over the base implementation.
Inherited from Routed |
On |
When overridden in a derived class, provides a notification callback entry point whenever the value of the Source property of an instance changes.
Inherited from Routed |
See Also